基于{V_(8)O_(24)}^(8-)阴离子簇的一维Zn(Ⅱ)配合物的合成及晶体结构

Hydrothermal synthesis and crystal structure of a one-dimensional Zn(Ⅱ) coordination polymer based on cyclic {V_(8)O_(24)}^(8-)

利用水热合成技术,合成了1个基于{V_(8)O_(24)}^(8-)阴离子簇的Zn(Ⅱ)配合物[Zn2(Hdpa)3]2V8O24(dpa=2,2′-dipyridylamine),通过X-射线单晶和粉末衍射、红外光谱和热重-差热分析手段进行了表征.单晶X-射线衍射分析表明化合物是由2种不同的阳离子片段([Zn(dpa)2]2+和[Zn(dpa)]2+)连接{V_(8)O_(24)}^(8-)阴离子簇形成的1D带状结构,其中{V_(8)O_(24)}^(8-)阴离子簇展示了清晰的椅式构型,2个[Zn(dpa)]2+单元分别被支撑在椅式构型的两侧.

The novel Zn(Ⅱ)coordination polymer based on cyclic{V_(8)O_(24)}^(8-),[{Zn(dpa)2}2{Zn(dpa)}2V8O24]1(dpa=2,2'-dipyridylamine),has been synthesized under hydrothermal condition and characterized by X-ray power diffraction,IR,thermogravimetric analysis.Single-crystal X-ray diffraction analysis reveals that 1 is a one-dimensional zonal chain constructed from[Zn(dpa)2]2+fragments and[{Zn(dpa)}2V8O24]4-subunits,in which the{V_(8)O_(24)}^(8-)anion shows a chair-like structure and two[Zn(dpa)]2+units are supported on both sides of the chair-like structure respectively.